'Proceedings of a N.A.T.O. Advanced Study Institute on the Ecology and Revegetation of Drastically Disturbed Areas held at the Pennsylvania State University, University Park, Pennsylvania, August 13 to 16, 1969' - title page verso. - In 2 vols.
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Ecology and reclamation of devastated land. ISBN 9780677155906. Published by Gordon and Breach in 1973. Publication and catalogue information, links to buy online and reader comments.
